Jack



Aug. 2@, 1935.

J. s. JARDIM JACK Filed April 29, 1955 2 Sheets-Sheet l INVENTOR. j.find/ 77 ATTORNEY.

' Aug. 2%, 19395.. J 5 JARDIM 2,011,933

JACK

Filed April 29, 1935 2 Sheets-Sheet 2 INVENTOR. Joayu/mj. Tard/mATTORNEY.

Patented Aug. 20, 1 93 5 I 3 Application April 29,

This invention relates-to lifting, devices jacks and has for oneof itsobjects the provision I of sucha device with which the, wheels of anautomobile orother vehicle may be lifted off the.

1 ground by rolling or driving the said vehicle over a ramp forming apart of, the jack:

Another object of the invention is the provision ofsuch a device whichmay be adjusted to any required height without the operator having tolift the weight of the vehicle off the ground.

A'further object of the invention is the provi-.' sion of a jack of thischaracter in which several points of adjustment are provided;

. A still further object of the invention provision ofsuch a jack,comprising a ramp, tapered block, or runway upon which a wheel of avehicle may be driven by its own power and a jack block to receive andsupport the vehicle with one or more wheels off the ground so that thesaidpwheel or wheels may be removed or replaced. 7

Another object is to produce a device of the character described inwhich the maximum simplicity of construction and operation is secured.Other objects and advantages will appear as thenature of theimprovements is better understood, the invention consistingsubstantially in able weight supporting block.

the novel arrangement and co relation of parts herein fully describedand illustrated in the accompanying drawings, wherein similar referencecharacters are used to describe corresponding parts throughout theseveral views, and then finally pointed out and specifically defined andindicated in the appendedclaims.

The disclosure made the basis of exemplifying the present inventiveconcept suggests a practical embodiment. thereof, but the invention isnot tobe restricted to the exact details of this disclosure, and thelatter, therefore, is to be FigureBis a perspective view of the combinedadjusting wedge and guide, and

Figure 6 is a perspectiveview of the stop for qi im Jail-dim; New York",Y1

' 193 5, Serial; pi 18sec 1 I 5 C i L W i the supportingblock and its;slide or "carriage;

is the V Referring nowtothedrawings in detail l0 indicates a; base whichis preferably. centrally Jchanneled, asat; M1, the said channelextending.

the entire length thereon If desirable a; rubber pad I 2 may be providedat the bottomefvthe, said base; Pivotally mounted'at l3 on the base I0providedwithapain of rollersili; w I The carriage I5 is provided with acentral opening I 1 in which there is slidingly mounted a block 1 l8having a serrated top surface l9, the'carr'iage l5 being similarlyserrated at its top surface 20.

v The block [8 may be vertically adjusted within the carriage l5 bymeans of a screw 2| which passes through athreaded opening 22 centrallylocated in the block ill. The screw M is provided with a knurled head 23by which it may be turned I to raise or lower the block 18.

The slideway u may be tilted aboutits pivot and raised'by means of acombined guide and wedge 25 by moving the said wedge forwardly along thebase. The said member comprises a' tapered or wedge shaped-base 26 andside walls 21 between which the slideway I4 is guided and is a slidewayl' t- -in which-there is'slidingly sup-c I portecl a carriage. l5. Thesaid carriage; may-be v maintained in vproperalinement withvthe basewhen in raised position.

Slidably or otherwise supported at the front of the base Hi there is abar 28 upon which there is slidably supported a ramp, runway or taperedblock 29 which is higher at the rear than at the front thereof. Toremove a tire or wheel from a vehicle, the said vehicle is drivenforwardly with one of its wheels 30 riding over the ramp 29. This actionraises the vehicle sufficiently high enough so that a portion of thevehicle3l passes over the 7 block I 8. After the wheel passes thehighest point of'the ramp 29, the said portion 3| will rest upon theserrated surface 19 of the block. Further movement of the vehiclewillslide the carriage l5 and block IS in the direction of the-arrow 32until" the said carriage abuts a stop 33 secured to the rear of theslideway M by means of a screw 34. The said stop 33 and combined wedgeand guide 25 are joined together by a chain 35, the said chain beinglong enough to permit the wedge 25. to bemoved to the forward end of thebase. With the carriage l5 against the stop 33, the tire may beremovedand replaced and the vehicle backed off the device. x I

It will be'understood',thatbefore driving the vehicleover the ramp, theblock I8 is first adjusted to a height suitable for the particularvehicle, the said adjustment being made by either the' s1idew ay,-a'stop. in the slideway for liiniting,

the sliding movement 'of the said member; and a ramp operativel'yassociated with the base for the the screw 2| or the wedge 25 or both.In some cases, no adjustment maybe necessary and the vehicle may restdirectly on the serrated surface of the carriage. The serrations on boththe carriage and block are so arranged that the sup-' ported vehicleportion 3! cannot slip off. i

From the foregoing, it will be seen that I'have provided a simple andefficient jack which may be adjusted to any desiredheigh-t Without theoperator having to raisethe weight: o f-the car While doingsoastall,theadjustmentsmay be made. prior to the raising of the car, thecar being raised when it isdrivenvover the ramp.

It will further be understood that the block may in some instances beomitted and the carriage may 'act as the vehicle supporting membe raHaving described my invention, what I claim as new and desire to secureby Letters Patentis:

l. -A' device of the nature described, comprising a base, a slidewaypivotally mounted at one end thereof to the corresponding end 'Lof'the'base, a vehicle supporting member slidably mounted in 2.- A deviceof the nature described, comprising abase, a slideway pivotally mountedat on'e end thereofto the corresponding end of'the base, a

vehicle supporting member slidably mounted'in v 2,011,933 ii-ii Y a 1'the slidway, a stop in the slideway for limiting the sliding movement ofthe said member, a Wedge slidable on the base and in operativeengagement [with the slideway, and a ramp operatively associated withthe base for the purpose specified.

. 3. A device of the nature described, comprising a base, a slidewaypivotally mounted at one end thereof to the corresponding end of thebase, a carriage slidably mounted in the slideway, a

, vertically adjustable block invthe carriage, a stop the. slideway forlimiting the, sliding movement of the carriage, and a ramp operativelyassociated ,with-the base for the purpose specified.

4. A device of the nature described, comprising "a base, a slidewaypivotally mounted at one end thereof-to -the,corresponding end of thebase, a

carriage slidably mounted in the slideway, a

' vertically adjustable block in the carriage, a stop in theslideway forlimitingthe sliding movement of the carriage, awedge slidable on thebase and in operative "engagement with'the slideway, and a rampoperatively' associated with the base for the purposespecified. r 4 a V5'. A device of the nature described, comprising a 'base,;a" slidewaypivotally mounted at one end thereof to acorresponding endof't'he base,a vehicle supporting member slidably mounted in the slideway, anda rampoperatively associated wi'ththe ba'se-foi 'the purpose specified."

' C JOAQUIN! S.'JARDIM.

